
The Wilkins Ice Shelf is at risk of partly breaking away from the Antarctic Peninsula as the ice bridge that connects it to Charcot and Latady Islands looks set to collapse. The beginning of what appears to be the demise of the ice bridge began this week when new rifts forming along its centre axis resulted in a large block of ice breaking away.
“It’s amazing how the ice has ruptured,” said David Vaughan, a glaciologist with the British Antarctic Survey. “Two days ago it was intact,” he said, referring to a satellite image of the Wilkins ice shelf.
The loss of the ice bridge could mean a wider breakup of the ice shelf.
The 40-kilometer-long (25-mile-long) ribbon of sea ice that secured the Jamaica-size ice shelf (which is just out of view in the above pictures) to Antarctica had been "hanging by a thread" since August 2008.
The satellite picture, by the European Space Agency, showed that a strip of ice about 25 miles long that is believed to pin the ice shelf in place had snapped.
These observation come from images processed by the Earth Observation G-POD (Grid Processing On Demand) operated at ESA/ESRIN using Grid computing. This is one several third-party applications and services integrated and supported by the European Space Agency Grid using Terradue's
gridify application integration environment. The
gridify solution allows the implementation and configuration of composite services requiring the use of substantial computer resource and large data volumes in an dynamic and timely fashion.
For more information on the Wikins Ice Shelf events check these web sites